Jean-Baptiste Leca

Partner

Jean-Baptiste Leca is a Paris Bar lawyer whose practice spans the full spectrum of intellectual property law, coupled with a strong command of complex and innovative contracts. He advises and represents clients across both contentious and non-contentious matters.
 
Known for his responsiveness and ability to devise practical, creative solutions, he assists French and international clients in protecting, enforcing and leveraging their IP rights, as well as in structuring and steering their industrial and commercial development projects.
 
Jean-Baptiste represents clients before French and European courts, including the Unified Patent Court (UPC) and intellectual property offices. He regularly coordinates with foreign colleagues, technical experts, and IP attorneys.
 
Jean-Baptiste has particular expertise in patent matters, notably in the health and life sciences sectors, and also advises clients active in the creative, beauty and food industries.
 
He holds a PhD and studied in France (Dauphine, Sciences Po and the Sorbonne), the United Kingdom (University College London) and the United States (Columbia Law School). He has practised in both France and Italy within leading law firms and IP practices.
 
Jean-Baptiste frequently speaks at professional and academic events in France and abroad, including at the Universities of Aix-Marseille, Turin and Naples.
 
He is recognised in Best Lawyers: Ones to Watch in France for Intellectual Property Law.
 
Jean-Baptiste works in French, English and Italian.

References

Appeared in The Gazette du Palais, June 2025

Appeared in Strategies, June 2025

Appeared in The Gazette du Palais, July 2024

Appeared in Strategies, June 2024

Appeared on Blip!, the blog of the Centre for International Intellectual Property Studies (CEIPI), November 2023

Doctoral thesis in private law (Aix-Marseille University) published in Les cahiers de droit de la santé (No. 34), December 2022

Published in the Revue générale de droit médical - Panorama of pharmaceutical law 2021, LEH Edition, March 2022

Collection Ouvrages Généraux, LEH Édition, September 2020

Published in the Revue générale de droit médical - Panorama of pharmaceutical law 2019, LEH Edition, January 2020

7th vintage meetings Wine, Law & Health - Bordeaux, LEH Édition, November 2019

Winner of the APRAM Prize 2018 (Association of Trademark and Design Law Practitioners), March 2018

5th vintage meetings Wine, Law & Health - Bordeaux, LEH Édition, November 2017

Università degli studi di Napoli Federico II

European intellectual property law

Università degli studi di Torino

Comparative law on intellectual property

Aix-Marseille University

Intellectual Property Rights in Comparative Health Law

École de Formation du Barreau (EFB Paris)

My first patent infringement case

École Supérieure du Génie Informatique (ESGI)

Innovation & Patent Law

AI in IP - From patenting to infringement

Webinar organised by AIPPI's German Group

Enforcement of financial claims in IP matters

AIPPI tripartite meeting (Germany, France, Poland) in Warsaw

The ins & outs of patent litigation funding

Tripartite AIPPI meeting (Spain, France, Italy) in Venice

International Association for the Protection of Intellectual Property (AIPPI)

Chairman of the Youth Committee

French Association of LGBT+ Lawyers (AFALGBT+)

Secretary

Licensing Executives Society (LES) France